(x+y)^2+2x+2y,(a-b)^3-2b(b-a)^2.
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(x+y)^2+2x+2y,(a-b)^3-2b(b-a)^2.
(x+y)^2+2x+2y,(a-b)^3-2b(b-a)^2.
(x+y)^2+2x+2y,(a-b)^3-2b(b-a)^2.
(x+y)^2+2x+2y
=(x+y)^2+2(x+y)
=(x+y)(x+y+2)
(a-b)^3-2b(b-a)^2
=(a-b)^3-2b(a-b)^2
=(a-b)^2(a-b-2b)
=(a-3b)(a-b)^2
(x+y)^2+2x+2y,
=(x+y)²+2(x+y)
=(x+y)(x+y+2)
(a-b)^3-2b(b-a)^2.
=(a-b)^3-2b(a-b)^2.
=(a-b)²(a-b-2b)
=(a-b)²(a-3b)
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